JPH0227884B2 - - Google Patents

Description

【発明の詳細な説明】 本発明はガス密封開閉装置に関し、その目的は
１ 1/2遮断器方式の系統構成によるものにおいて
従来の標準構成のガス密封開閉装置に使用する構
成要素、特に遮断器をそのまま利用しながら、コ
ンパクトで経済的な装置を提供することにある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gas-sealed switchgear having a 1 1/2 circuit breaker type system configuration, and an object of the present invention is to improve the composition of components used in a gas-sealed switchgear with a conventional standard configuration, especially the circuit breaker. The objective is to provide a compact and economical device that can be used as is.

第１図は１ 1/2遮断器方式の系統構成による開
閉装置の単線結線図を示す。図において、B₁，
B₂は母線、DS₁〜DS₈は断路器、CB₁〜CB₃は遮
断器、ES₁〜ES₈は接地装置、CHd₁，CHd₂はケ
ーブルヘツド、PT₁，PT₂は計器用変圧器、CT₁
〜CT₆は計器用変流器、L₁〜L₇は曲り導体部であ
る。 Figure 1 shows a single line diagram of a switchgear with a 1 1/2 circuit breaker type system configuration. In the figure, B ₁ ,
B ₂ is the busbar, DS ₁ to _{DS 8} are the disconnectors, CB ₁ to _{CB 3} are the circuit breakers, ES ₁ to _{ES 8} are the grounding devices, CHd ₁ and CHd ₂ are the cable heads, and PT ₁ and PT ₂ are the instrument transformers. vessel, CT ₁
~ _CT6 is a current transformer for measuring instruments, and _L1 ~ _L7 are bent conductor parts.

この結線図のものを全三相一括型のガス密封開
閉装置（以下GISと云う）にて具体化するには、
第２図、第３図、第４図のものがあるが、何れも
遮断器、断路器等各構成機器の配置が結線図その
ままであるから理解し易いという利点があるもの
の、全体としては、所要据付面積が大きくなる。
又、回線の増設の際は合計４回線までは背中合せ
に２列に配置することにより実現可能ではある
が、それ以上の増設に際しては両側の母線B₁，
B₂により中央部の遮断器CB₃が囲まれてしまうの
で、万一の事故の場合この遮断器の引出しが甚だ
困難となる。 In order to embody this wiring diagram in an all-three-phase gas-sealed switchgear (hereinafter referred to as GIS),
There are Figures 2, 3, and 4, but all of them have the advantage that they are easy to understand because the layout of each component such as circuit breakers and disconnectors is the same as the wiring diagram, but as a whole, The required installation area becomes larger.
Also, when adding lines, it is possible to increase the number of lines by arranging them in two rows back to back for a total of up to 4 lines, but when adding more than that, it is possible to increase the number of lines by arranging them in _two rows back to back.
Since the central circuit breaker CB ₃ is surrounded by B ₂ , it will be extremely difficult to pull out this circuit breaker in the event of an accident.

更に、第２図のものは遮断器CB₃の本体容器の
両側に導体を振分けて引出す形態とする必要があ
り、この形は、通常の単母線式又は二重母線式の
開閉装置に使われる如く容器の片側のみから全導
体を引出す標準の形態とは異なつた特殊形のもの
であり、特別に製作することになる。この場合
は、導体の配置が、遮断器CB₃において標準構成
のものとは異なるので、諸検証試験を一通り実施
して性能の確認を行なうのに多額の費用を要す
る。又、同一開閉装置に、同定格の機器の形態が
異なるもの即ち遮断器CB₁及びCB₂，CB₃が混在
することとなり、仕様統一、部品、予備品の標準
化の点からも好ましくない。 Furthermore, in the case shown in Figure 2, the conductors must be distributed and drawn out on both sides of the main body container of the circuit breaker CB ₃ , and this type is used in ordinary single-bus or double-bus type switchgear. This is a special type that differs from the standard configuration in which all conductors are drawn out from only one side of the container, and must be specially manufactured. In this case, since the arrangement of the conductors is different from the standard configuration of the circuit breaker CB ₃ , a large amount of cost is required to conduct a series of verification tests to confirm the performance. In addition, devices with the same rating but with different forms, ie, circuit breakers CB _1, CB ₂ , and CB ₃ , coexist in the same switchgear, which is undesirable from the viewpoint of unifying specifications and standardizing parts and spare parts.

第２図のものは更に、２回線を有する３遮断器
の単位のものの長さが後述の第５図に示す本発明
のものに比べ約1.7倍（回路電圧154KVの例）の
長さとなり、敷地や屋内式の場合の建屋の形状寸
法に大きい制約を与える結果となる。 Furthermore, the length of the unit of 3 circuit breakers with 2 circuits in FIG. 2 is about 1.7 times longer than that of the present invention shown in FIG. This results in significant restrictions on the site and the shape and dimensions of the building in the case of an indoor type.

又、第３図及び第４図のものは、遮断器CB₁〜
CB₃の本体容器の片側のみから導体が導出される
点では標準構成のものと同一形態であり好ましい
が、占有据付面積はやはり本発明のものに比べて
約1.6倍となり、又、曲り導体部L₁〜L₇が必要と
なつて経済的でないばかりでなく、前述の様な増
設時の不都合がある。更にこれは輸送に際して
も、２回線を有する３遮断器の単位のものを大略
５部分に分割して輸送する必要があるため不経済
となる等の問題点がある。 In addition, the ones shown in Figs. 3 and 4 are circuit breakers CB ₁ to
Although the conductor is led out from only one side of the main body container of CB ₃ , it has the same form as the standard configuration and is preferable, but the installation area occupied is still about 1.6 times that of the one of the present invention, and the bent conductor L ₁ to _{L 7} are required, which is not only uneconomical, but also inconvenient when expanding as described above. Furthermore, this also poses problems such as being uneconomical when transporting a unit of three circuit breakers with two circuits because it is necessary to divide it into roughly five parts and transport it.

更に、特開昭50−89851号公報には母線側の遮
断器をそれぞれ母線の外側に配置し、中央の遮断
器を何れかの母線側の遮断器と並置した構成が示
されている。 Further, Japanese Patent Application Laid-Open No. 50-89851 discloses a configuration in which the circuit breakers on the busbar sides are arranged on the outside of each busbar, and the central circuit breaker is arranged in parallel with the circuit breakers on either busbar side.

しかしこの公報の構成では母線と直交する方向
に３列配置となり設置スペースが広くなるという
欠点を有する。 However, the configuration disclosed in this publication has the disadvantage that three rows are arranged in the direction orthogonal to the bus line, resulting in a large installation space.

本発明は以上の点に鑑み提案されたもので、以
下第５図に示す実施例に基づき説明する。 The present invention has been proposed in view of the above points, and will be described below based on the embodiment shown in FIG.

同図において、両母線B₁，B₂間に挿入された
３台の遮断器CB₁〜CB₃のうち、母線B₁，B₂側の
遮断器CB₁，CB₂はそれぞれの母線B₁，B₂の外側
に配置し、中央の遮断器CB₃はどちらかの母線側
の遮断器（この実施例では遮断器CB₂）に並置し
て他方の母線側の遮断器（この実施例では遮断器
CB₁）と対向配置せしめている。 In the figure, among the three circuit breakers CB ₁ to CB ₃ inserted between both bus bars B ₁ and B ₂ , the circuit breakers CB 1 and CB ₂ on the bus bar B ₁ and B ₂ side are connected to the respective bus bars B ₁ and CB ₂ . , B ₂ , and the central circuit breaker CB ₃ is juxtaposed with the circuit breaker on either bus side (breaker CB 2 in this example) and the circuit breaker on the other bus side (in this example, circuit breaker CB ₂ ). circuit breaker
It is placed opposite CB ₁ ).

即ち第１図の系統図の中でDS₆とDS₈との間の
導体部を曲り導体部L₁〜L₃としてCB₃のベース上
より隣接するCB₂のベース上へ橋絡し、他の構成
要素と共にCB₂はCB₃との並置が可能となつてい
る。 That is, in the system diagram shown in Fig. 1, the conductor section between DS ₆ and DS ₈ is bent as conductor sections L ₁ to L ₃ and is bridged from the base of CB ₃ to the base of adjacent CB ₂ , etc. CB ₂ , along with its constituent elements, can be juxtaposed with CB ₃ .

以上の実施例によるときは、従来の標準構成の
GISに使用される遮断器をそのまま使用しながら
第４図のものに比べ奥行寸法（遮断器CB₁，CB₂
間の寸法）を大巾に減じ、コンパクトでしかも曲
り導体部の数も少く経済的な装置を得ることがで
きる。又回線部が増えても母線に取囲まれる遮断
器が生じない。更に増設時の母線長さも短くてよ
いので遮断器を隣接して整然と並置できる。その
結果、遮断器の保守点検が容易であり、万一事故
等が発生し遮断器を取り出さねばならない場合で
も特に問題は生じない。しかも、輸送に際しても
輸送単位の数を第３図、第４図の如きものより少
なくできる。その上、増設の際にも容易に対処で
きるといつた効果を有する。 When using the above embodiment, the conventional standard configuration
While using the circuit breakers used in GIS as they are, the depth dimensions (breakers CB ₁ , CB ₂
It is possible to obtain a compact and economical device with a small number of bent conductor parts by greatly reducing the width (dimensions between the two). Furthermore, even if the number of line sections increases, there will be no circuit breaker surrounded by the busbar. Furthermore, since the length of the bus bar during expansion can be short, the circuit breakers can be arranged adjacently and neatly. As a result, maintenance and inspection of the circuit breaker is easy, and even if an accident or the like occurs and the circuit breaker must be removed, no particular problem will occur. Furthermore, during transportation, the number of transportation units can be reduced compared to those shown in FIGS. 3 and 4. Moreover, it has the advantage of being easy to deal with when expanding the system.

更に又、特開昭50−89851号公報のものは、上
記したように３列配置となる。この点本発明によ
れば２列で構成できる上に遮断器の保守点検に何
ら障害がないといつた効果がある。 Furthermore, the device disclosed in Japanese Patent Application Laid-Open No. 50-89851 has a three-row arrangement as described above. In this respect, the present invention has the advantage that it can be constructed in two rows and there is no problem in maintenance and inspection of the circuit breaker.

以上詳述した如く、本発明によるときは、標準
形態の遮断器をそのまゝ利用しながらコンパクト
で経済的な１ 1/2遮断器方式の系統構成による全
三相一括形のGISを得ることができる利点を有す
る。 As detailed above, according to the present invention, it is possible to obtain an all-three-phase integrated GIS with a compact and economical 1 1/2 circuit breaker type system configuration while using standard circuit breakers as they are. It has the advantage of being able to

更にその占有据付面積を縮めることができる効
果を奏する。 Furthermore, the installation area occupied can be reduced.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は１ 1/2遮断器方式の系統構成による開
閉装置の単線結線図、第２図〜第４図は第１図の
ものをGIS化した場合の従来の装置を示すもの
で、ａは上面図、ｂは側面図である。第５図は本
発明の実施例にしてａは上面図、ｂは側面図、ｃ
はａのｃ−ｃ線に沿える側面図である。 B₁，B₂……母線、CB₁〜CB₃……遮断器。 Figure 1 is a single line diagram of a switchgear with a 1 1/2 circuit breaker type system configuration, and Figures 2 to 4 show conventional equipment when the one in Figure 1 is converted into GIS. is a top view, and b is a side view. Figure 5 shows an embodiment of the present invention, in which a is a top view, b is a side view, and c is a side view.
FIG. 2 is a side view taken along line cc of a. B ₁ , B ₂ ... bus bar, CB ₁ to CB ₃ ... circuit breaker.

Claims (1)

【特許請求の範囲】[Claims] １ １ 1/2遮断器方式の系統構成による全三相一
括形ガス密封開閉装置において、両母線間に挿入
される３台の遮断器のうち、母線側の遮断器はそ
れぞれの母線の外側に配置し、中央の遮断器は何
れかの母線側の遮断器に並置すると共に他方の母
線側の遮断器と対向配置したことを特徴とするガ
ス密封開閉装置。In a full three-phase gas-sealed switchgear with a 1 1 1/2 circuit breaker type system configuration, of the three circuit breakers inserted between both bus bars, the circuit breaker on the bus bar side is installed on the outside of each bus bar. 1. A gas-sealed switchgear, characterized in that the central circuit breaker is arranged in parallel with the circuit breaker on one of the busbars and facing the circuitbreaker on the other busbar.